Home / Milling / Mill Tooling / Arbor, Boring Head, 30 NMTB 1-1/2″ 18TPI (A) View cart “Boring Head, R-8, Diameter 4″, 1″ Boring Bars, Critereion L624R8” has been added to your cart. Arbor, Boring Head, 30 NMTB 1-1/2″ 18TPI (A)$25.00 1 in stock Add to cart Category: Mill Tooling Description Description (A) Arbor, Boring Head, 30 NMTB 1-1/2″ 18TPI Related products Quick Change Tooling, R-8, Narex $99.00 Add to cart Arbor, Boring Head, 30 NMTB 1-1/2″ 18TPI $30.00 Add to cart Boring Head, Straight Shank, 2-1/4″ Diameter, Lincoln Machine Specialty $49.00 Add to cart Boring Head, Straight Shank 1″, Diameter 2-1/2″, Erickson Tenthset $85.00 Add to cart